CVE-2016-4047 XML external entity in n/a
Attackers can exploit XML External Entity vulnerabilities in document parsing to track access and expose internal infrastructure information.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2016-4047?
CVE-2016-4047 is a medium-severity vulnerability in Open-Xchange Open-Xchange Appsuite, published on 15 Dec 2016. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
An issue was discovered in Open-Xchange OX App Suite before 7.8.1-rev8. References to external Open XML document type definitions (.dtd resources) can be placed within .docx and .xslx files. Those resources were requested when parsing certain parts of the generated document. As a result an attacker can track access to a manipulated document. Usage of a document may get tracked and information about internal infrastructure may get exposed.
Which versions are affected by CVE-2016-4047?
It affects 1 product.
Products include Open-Xchange Open-Xchange Appsuite.
How do I fix CVE-2016-4047?
No fix has been published for CVE-2016-4047 yet. Limit exposure of the affected software until one is available.
Is CVE-2016-4047 being exploited?
There is no known exploitation of CVE-2016-4047 in the wild and no public exploit code.
Other vulnerabilities in Open-Xchange Open-Xchange Appsuite
Sources
Also known as GHSA-8ffc-33px-g32x.